作者:Saroj、Om P.S. Patel、Krishnan Rangan、Anil Kumar
DOI:10.1016/j.tetlet.2019.07.030
日期:2019.8
domino approach has been developed for the synthesis of pyridin-2-yl urea derivatives via the reaction of 2-aminopyridinium salts and arylamines. The developed strategy tolerated a wide range of functional groups and afforded pyridin-2-yl ureas in moderate to good yields. The reaction was postulated to involve tandem cyclization, intermolecular nucleophilic addition, ring opening, and demethylation.
通过2-氨基吡啶鎓盐和芳基胺的反应合成吡啶-2-基脲衍生物,已经开发出了前所未有的碱促进多米诺骨牌方法。所开发的策略可耐受各种官能团,并以中等至良好的产率提供吡啶-2-基脲。假定该反应涉及串联环化,分子间亲核加成,开环和去甲基化。